The trusty pressure washer is a gardener’s best friend, so it’s a good idea to do some research before buying. These machines are capable of blasting away debris, mud, and plant gunk like no other tool, and they’re also versatile enough to be used on a variety of surfaces including hard, cement and stone pavers, patios, verandas, and driveways, as well as softer materials such as timber and fibro.
Before buying a pressure washer it’s a good idea to work out what you’ll be using it for. If you’re planning to power wash your entire driveway and patio, you’ll need a more powerful engine than if you’re just planning on cleaning a few window sills. There are a range of different machines on the market to suit all needs, so it’s worth working out what you need before committing to a purchase.
Read on to learn more about the best pressure washer pumps.
Our Editor’s Best Pressure Washer Pumps Reviews
- 【Extend Service Life & High Performance】Replace this HORIZONTAL 3/4" shaft pump to reborn engine instead of buying a whole new power washer, and produce up to 3400 PSI at 2.5 GPM. Easy-to-install kit for quick start, stainless steel pistons for improved seal life and features a stainless-steel integrated unloader with easy-start system, ideal for washing walls, sidewalks, vehicles and more. *Not for 7/8" pumps, SRMW footprints, or frames with shrouds blocking the mount.
- 【Fit Guidance (Horizontal, 3/4" Shaft)】SAE standard bolt pattern for many gas pressure washers with horizontal engines, great replacement for ►HONDA GC190, GC160 (with 3/4" keyway shaft), GX160. ►SIMPSON: MSH3125 MS60753, MS60788, MS60850, MS60799,MS61043. ►Homelite 308418007, 309515003, 308418004, 308653078, 308653057, UT80522B, UT80953B, UT80522A, UT80953A. ►Karcher: G3050OH, K2400HH, G2400HH. ►mv 2.5g30 ►Troy-Bilt: 020241, 020241-1, 20242.
- 【TRV Protection & Adjustable Unloader】The TRV helps protect the pump from overheating in bypass. A double-seal system and upgraded piston/bearing design target longer service life Max 150 hours, longer than original power washer pump. With adjustable unloader allows you to increase or reduce the pressure to fit the engine's requirements better.
- 【Fit for Who】USA Standard Mounting design, this pump could fit most brand gas power washers come with the small gas engine from 180 to 225 cc (Equivale 6.5 to 7 hp engine). * Please match engine orientation, PSI/GPM, 3/4" shaft, and inlet/outlet orientation for a proper fit.
- 【Easy Start Easy Job】Pre-filled oil (no initial oil change required) and an Easy-Start structure provide easier pull-back starting. Use it for years with your pressure washer accessories. * Recommend draining out water inside pump and use pump protectant before long-time storage.
- INDUSTRIAL-GRADE HIGH-FLOW TRIPLEX PRO: This WOJET Pressure Washer pump kit is designed for 9-15 HP (250-420 cc) horizontal-shaft engines with a 1" shaft, offering a replacement for gas models from ▶Honda GX270, GX340, GX390 ▶Simpson PS60869, PS4240, ALH4240, ALH3425, ALWB60825, ALH4440 ▶DEWALT DXPW4035, DXPW61299, DXPW61377 ▶AAA 90039, 90038, 90034, 90056 ▶Westinghouse WPX4400 ▶Kohler CH395, CH440. Not sure if it fits your model? Please send your brand, model number, PSI and GPM, we’ll check for you!
- RESTORE PEAK POWER: Breathe new life into your washer. Engineered for heavy-duty use, this 4400 PSI, 4.0 GPM water pump for pressure washer restores full power and enhances reliability. It provides the force to blast away deep-seated grime and oil stains from driveways, the pressure to rinse a two-story house with ease, and consistent flow for cleaning large equipment and prepping big surfaces for painting. This is how you regain your machine to original power and extend its service life.
- INTEGRATED UNLOADER: This integrated unloader valve is the power washer pump’s main defense against overheating and damage. When you release the trigger, the valve instantly opens to relieve pressure. Instead of stalling, incoming water flows continuously through the manifold, carrying away heat. Unlike older designs where water stops and temperatures soar, our system provides constant cooling. This “cool-down cycle” reduces thermal stress, protects critical components, and extends pump life.
- SELF-PRIMING FOR GREATER FLEXIBILITY: Unlike most pumps, this model includes a unique self-priming function, giving you the freedom to draw water from a variety of sources. Whether it’s a bucket, pool, or tank, this replacement pressure washer pump happily pulls water, making it ideal for areas without a direct faucet connection. Perfect for mobile tasks or jobs at construction sites, its versatility ensures you can tackle tough jobs in remote locations or expansive outdoor spaces.
- THE LONG-LASTING PRESSURE WASHER PUMP: Engineered for longevity and performance, it features an adjustable unloader knob, corrosion-resistant brass pump head with polished ceramic pistons, forged brass manifold, and powder-coated blue aluminum crankcase. Pre-sealed and oil-filled for easy maintenance, it connects via 3/8" quick-connect outlet and 3/4" garden hose inlet. Includes siphon tube, mounting bolts, and shaft key. We stand behind its performance. If you run into issues, we’ll fix it.
- Wide Compatibility: Designed with a standard SAE bolt pattern, our parts washer pump is compatible with various gas pressure washers with horizontal engines, including Simpson MorFlex models 40224, 40225, 40226, and Santoprene model 41182. To ensure compatibility, be sure to match engine orientation, PSI, GPM, engine shaft diameter, and current pump inlet and outlet connection.
- High-Pressure Resistant Structure: Say goodbye to impurities damaging your plunger! Our power washer pump strengthens plunger hardness to improve wear resistance and prolong the life of water/oil seals. The one-piece pump head made of forged brass material offers a better sealing effect, high strength, and increased durability.
- Easy Oil Level Inspection: Checking the oil level has never been easier with our replacement power washer pump's sight glass and advanced oil seal technology – no need to use an oil dipstick. With visibility to the oil level and the oil itself, you can easily see when oil levels are low or if water has clouded the oil.
- Use It Anywhere: Whether you're cleaning outdoor walls, sidewalks, cars, or construction sites, our power washer replacement pump is the perfect solution to boost water pressure. It is a great helper for both daily and professional cleaning tasks. Try it out today and make cleaning a breeze!
- Tips: To protect the spring, the pressure is not set to the maximum value at the factory, and the user can adjust the pressure through the regulator.
- AAA TRIPLEX REPLACEMENT POWER WASHER PUMP: Replace your SIMPSON pressure washer pump with the AAA Triplex Power Washer Pump to restore cleaning power; It offers up to 3700 PSI at 2.5 GPM and fits horizontal engines with 3/4" shaft such as the Honda GX200
- EASY INSTALLATION: SAE standard bolt pattern fits many gas pressure washers with horizontal engines; To ensure compatibility, be sure to match engine orientation, PSI, GPM, engine shaft diameter, and current pump inlet and outlet connection
- ADJUSTABLE PERFORMANCE: Rely on PowerBoost Technology to increase pressure at the nozzle; Turn the hand knob to match power to tasks from siding and sidewalks to fleet vehicles; Stainless steel integrated unloader supports an easy-start system
- DURABILITY AND EASY MAINTENANCE: Dual oversized ball bearings reduce friction; Thermal relief valve prevents the pump overheating; The sight glass and advanced oil seal technology eliminates the need for a dipstick; Brass manifold adds durability
- POWER WASHER PUMP REPLACEMENT NOTES: This gas powered pressure washer replacement pump features a garden hose inlet and threaded M22 connection for use with pressure washer attachments; Includes siphon tube, hardware, shaft key, and instructions
- Extend the life of your pressure washer: Save money by replacing your pump instead of buying a whole new power washer; This easy-to-install kit is great for machines that can support 3300 PSI at 2.4 GPM to wash walls, fences, sidewalks, vehicles, and more
- Compatibility: SAE standard bolt pattern fits many gas pressure washers with horizontal engines. To ensure compatibility, be sure to match engine orientation, PSI, GPM, engine shaft diameter, and current pump inlet and outlet connection
- Standard Connections: This replacement pump features a garden hose inlet and threaded M22 connection high pressure hose outlet; Use it with many pressure washer hoses, including Simpson MorFlex models 40224, 40225, 40226 and Santoprene model 41182
- Skip the Oil Change: This pump features a maintenance-free crankcase so you never have to change the oil; It is manufactured from fully anodized die-cast aluminum for protection against corrosion; Use it for years with your pressure washer accessories
- Extended durability: A Thermal Relief Valve (TRV) protects the pump from overheating while in bypass mode; The TRV releases small amounts of hot water and intakes cooler water to prevent overheating and extend the life of the pump
- Protect During Storage: Protect your pressure washer pumps when storing for the season
- Piston and Seal Protector: Lubricates pistons and seals to protect the pump
- Cold Temperature Protections: Acts as antifreeze and winterizer to protects power washer parts in temperatures as low as -25°F
- Pressure Washer Compatibility: Compatible with either gas or electric pressure washers
- How to Use: Turn engine to the off position; inject Pump Guard into hose input
- COMPATIBILITY: The WOJET pressure washer pump works with the following engine models: ▶Honda GX160, GX200, GC160, GC190 ▶Briggs & Stratton 550EX, 575EX, 625EX, 675EXi, 725EXi, 850 Professional Series, 950 Series ▶Generac OHV 196cc, 161cc, 212cc ▶Subaru EA175V, EA190V ▶Kohler CH270, CH440, LH195, RH265, SH265, XT675 ▶Lifan 168F, 170F, LF200F ▶Loncin G200F, G160F, LC168F Not sure if it fits your model? Please send us your brand, model number, PSI, and GPM, and we’ll check for you!
- REVITALIZE YOUR PRESSURE WASHER: Give your old pressure washer a new lease of life with this reliable replacement pump. Designed for 3/4” shaft engines with 180 to 225 cc (6.5 to 7 HP), it fits well with many gas pressure washer models. With max pressure 3400 PSI and flow rate 2.5 GPM, this pressure washer pump is ideal for everyday tasks like car washes, driveway cleaning, fence maintenance, and other outdoor projects. It's a simple way to extend the life of your equipment
- EASILY ADJUSTABLE PRESSURE CONTROL: Our pump for power washer features an upgraded unloader that eliminates the need for a wrench to adjust pressure. Simply twist by hand - turn counterclockwise to reduce pressure for light tasks or clockwise to increase it for tougher jobs like cleaning driveways. This design lets you seamlessly switch between tasks, making it more convenient for washing cars, driveways, or more. The garden hose inlet and M22 outlet ensure easy connection to your existing setup
- SELF-PRIMING FOR GREATER FLEXIBILITY: Unlike most pumps, this model includes a unique self-priming function, giving you the freedom to draw water from a variety of sources. Whether it’s a bucket, pool, or tank, this power washer pump happily pulls water, making it ideal for areas without a direct faucet connection. Perfect for mobile tasks or supporting agricultural work, its versatility ensures you can tackle tough jobs in remote locations or expansive outdoor spaces
- REUSABLE PUMP: Made from strong die-cast aluminum, it resists rust and lasts a long time. A thermal relief valve prevents overheating by releasing hot water and letting in cooler water. It supports power washers up to 3400 PSI and 2.5 GPM. With detailed installation instructions and video, you can replace your old pump in just 10 minutes, making it a reliable upgrade for your pressure washer
- 【COMPATIBILITY 】Replacement for ►Honda: GCV160, GCV190 ►Homelite: UT80432A, UT80432, UT80993, 308653006, 308653058, 308653009, 308653093, 308653052, 308653078. ►Simpson: ms60773, msv3024. ►Subaru: ea190v ►Ryobi: RY803001, RY802800, RY802900, RY802723, RY802700A. ►Husky: HU80911, HU80709A, HU80911A. ►Craftsman: 580752500, 580752580, 580.752052, 580.752191. ►Briggs & Stratton: 311553gs, 020441-0, 020442-0.
- 【Reborn Your Power Washer】YAMATIC Rear Inlet/Outlet Vertical Pressure Washer Pump 7/8" Shaft MAX 3000 PSI / 2.5 GPM / @3400 RPM, Save money by replacing your pump instead of buying a new pressure washer. Top performance at 2600-3000 PSI and fit most Rear Outlet 180-196cc at 6.5-7hp engine RYOBI, Honda, Briggs and Stratton, Subaru, PowerStroke, Craftsman, Simpson, Homelite, and Many other brands. (* NOT fit the pressure washer with an idle down feature.)
- 【Extended Durability & Adjustable Unloader】 The high-performance double seal system prevents leakage, and the upgraded technical surfacing piston and bearing provide 150 hours of running time, longer than the original power washer pump. And the thermal relief valve (TRV) protects the pump from overheating while in bypass mode. The adjustable unloader allows you to increase or reduce the pressure to meet the engine's requirements better.
- 【Maintenance-Free】This pump features a maintenance-free crankcase, so you never have to change the gasoline. This easy-to-install kit is excellent for power washers that can support 3000 PSI at 2.5 GPM to wash walls, fences, sidewalks, vehicles, and more.
- 【Easy Start】 Set up in 5-10 minutes! Built in for quick & straightforward cold starts to make the startup a breeze, no need to release pressure before starting the engine. Each kit includes a siphon tube with filter, mounting bolts, shaft key, and instruction booklet to get your machine back in action as quickly as possible.
- REPLACEMENT POWER WASHER PUMP: Replace your SIMPSON pressure washer pump with the OEM Technologies Axial Cam Power Washer Pump to restore cleaning power; Get up to 3400 PSI at 2.5 GPM; Fits horizontal engines with 3/4" shaft like the Honda GX190 or GX200
- EASY INSTALLATION: SAE standard bolt pattern fits many gas pressure washers with horizontal engines; To ensure compatibility, be sure to match engine orientation, PSI, GPM, engine shaft diameter, and current pump inlet and outlet connection
- BROAD COMPATIBILITY: This power washer pump replacement features a garden hose inlet and threaded M22 connection high pressure outlet; Fits many pressure washer attachments, including Simpson MorFlex hoses 40224, 40225, 40226 and Santoprene hose 41182
- DURABLE AND MAINTENANCE-FREE: This pump features a maintenance-free crankcase so you never have to change the oil; It is manufactured from fully anodized die-cast aluminum for protection against corrosion; Stainless steel pistons improve seal life
- THERMAL RELIEF: A Thermal Relief Valve (TRV) protects the pump from overheating while in bypass mode; The TRV releases small amounts of hot water and intakes cooler water to prevent overheating; Stainless steel integrated supports our easy-start system
- ✿【AS PRESSURE WASHER PUMP】: ✦ PW28/2.5 ✦ High quality replacement water pump for your pump. These are OEM replacement washer pump head for many models of pressure washers. If your old one stopped working, is corroded etc. don’t hesitate!
- ✿【2940 Max Psi 2.4 Max Gpm Rating】: This gas washer pump is rated at 2940 PSI , 2.4 GPM and front facing lnlet outlet which is great for any and all small house cleaning projects. Very safe pressure even for washing your car or other things without being afraid to damage the paint!
- ✿【WASHER PUMP HEAD】: Fits Many Briggs & Stratton, Sears Craftsman, Troy Bilt, Honda, Devilbiss, Generac, & Karcher Pressure Washer Models. model 01537-0, model 020418, model 580.752052, model 020414, model 020515, model 020568, model 206041, model 020557, part 704667, pump 311966gs, srmw 2.2g24, srmw 2.2g26, srmw 2.2g26 318643.
- ✿【Pressure Washer Pump】: This water pump head is easy to be installed on Gas Pressure Washer. Homelite HL80833 3-N-1 Hi-Speed Gasoline Pressure Washer UT80709 Pressure Washer UT80911 Pressure Washer UT80911A Pressure Washer UT80709A Pressure Washer UT80835
- ✿【GUARANTEE】: If you are not satisfied with our pressure washer pump received, you can apply for refund in the valid period(12 months). In terms of any problem of this high pressure washer pump, you can send emails to us at any time. We will be the first time to reply you.
Best Pressure Washer Pumps Buying Guide
Before choosing the best pressure washer pump you should consider following options:
1. Water inlet valve: This is an important part of the pump that helps regulate the water flow into the pump. You can find two types of valves: one that is usually mounted on the water source itself, and another that is attached to the discharge hose.
Some pumps have both valves, while others have just one. If the pump has just one valve, it is important that you position it in a way that allows water to flow easily into the pump.
2. Discharge valve: The discharge valve also regulates water flow, but in the opposite direction. This valve is also available in two different models: one that is attached to the pump and another that is mounted on the discharge hose.
The two valves need to be in sync to ensure the right amount of water flows into and out of the pump. If the valves are not in sync, you may end up with an over- or under-pressurized pump.
3. Discharge head: The discharge head determines the maximum water pressure that the pump can produce. You can find two types of discharge heads: fixed and adjustable.
Fixed discharge heads are good for tasks that require a high water pressure, such as cleaning masonry and removing dirt from driveways.
Adjustable discharge heads are better for jobs that need a medium water pressure, such as cleaning windows and washing vehicles.
4. Maximum flow rate: This is the volume of water that the pump can discharge over a period of time. You can calculate the flow rate of a pump by multiplying the GPM (gallons per minute) by the discharge head in feet.
The maximum flow rate is important if you need to use the pump for applications that require a steady supply of water, such as cleaning carpets or washing vehicles.
5. Power source: The power source of a pump is determined by the energy that drives it. There are two types of sources: electric and gas-driven.
Electric-powered pumps use electricity from the local power grid, and gas-powered pumps use either a gas-powered engine or a battery-powered electric motor.
Gas-powered pumps are usually more expensive, but they are very convenient because you can use them anywhere.
6. Power requirement: This is the amount of energy that is required by the pump at any given moment. This can be calculated by multiplying the flow rate by the head in feet.
You can calculate the total power requirement by multiplying the flow rate by the head in feet and then multiplying the result by the GPM.
7. Maximum water depth: This is the maximum height that the pump can discharge water in relation to the water source. This is usually expressed in feet of submergence.
What else you should know about pressure washer pumps
1. What are the best pressure washer pumps for home use?
There is no definitive answer to this question as the best pressure washer pump for home use will vary depending on the specific needs and requirements of the user. However, some of the most popular pressure washer pumps for home use include electric pumps, gas-powered pumps, and diesel-powered pumps.
2. What are the best pressure washer pumps for commercial use?
The best pressure washer pumps for commercial use are those that are durable and can withstand heavy use. Some of the best brands include Karcher, General Pump, and Annovi Reverberi.
3. What are the best pressure washer pumps for heavy-duty use?
There is no definitive answer to this question because it depends on the specific needs of the user. However, some pressure washer pumps that are generally considered to be well-suited for heavy-duty use include the following:
1. General Pump TS2021
2. Annovi Reverberi RMV2.5G30
3. Cat Pumps CP3 plunger pump
4. Comet ZWD4040G
5. Interpump W923HD
4. What are the best pressure washer pumps for light-duty use?
Some of the best pressure washer pumps for light-duty use are the Annovi Reverberi AR Blue Clean, the Generac OneWash, and the Ryobi RY14122.
5. What are the best pressure washer pumps for portable use?
There is no definitive answer to this question as the best pressure washer pump for portable use will vary depending on the specific needs and preferences of the user. However, some of the factors that could be considered when choosing a pressure washer pump for portable use include the pump’s flow rate, pressure rating, and portability. Additionally, it is important to consider the compatibility of the pump with the pressure washer’s hose and nozzle in order to avoid any potential problems.
Conclusion
On the market, there are numerous best pressure washer pumps. Hopefully, the list of the top ten best pressure washer pumps will save you time researching and deciding on the best one for you.